Year	annual %
1961	2.58579420430938
1962	2.59514764604541
1963	2.60715219581702
1964	2.62329925156854
1965	2.63683482956947
1966	2.66311112589811
1967	2.70983905087944
1968	2.76490065422123
1969	2.82698004785701
1970	2.8944100680992
1971	2.97800794828762
1972	3.03276725342959
1973	3.03759828459012
1974	3.02689109749504
1975	3.0098518653529
1976	2.98997985055502
1977	2.97161139021724
1978	2.95496492516366
1979	2.93451218699019
1980	2.90118372623639
1981	2.85495857041782
1982	2.82357086161365
1983	2.80167101325342
1984	2.78355140489334
1985	2.78393697661118
1986	2.78366703321044
1987	2.81304284280236
1988	2.86276202777359
1989	2.90164500514251
1990	2.95525730694496
1991	3.00501448400904
1992	3.04087164695388
1993	3.094667743784
1994	3.14523601234613
1995	3.17194065075098
1996	3.18132685558576
1997	3.17213384146486
1998	3.14400562356494
1999	3.0985230327836
2000	3.03990100767654
2001	2.99623070466098
2002	2.96156859041379
2003	2.93341631578179
2004	2.9270346495312
2005	2.92328568439833
2006	2.92675246207207
2007	2.92652452166253
2008	2.91149152987358
2009	2.8994727895916
2010	2.86594914827117
2011	2.80016501090231
2012	2.72814099743688
2013	2.67158913972617
2014	2.6271377711217
2015	2.58818714317603
2016	2.58601148442291
2017	2.58416485189804
2018	2.55407704067255
2019	2.52531662828285
2020	2.48242289292055
2021	2.41686937370051
2022	2.37869514981706
2023	2.38265667508188